package com.atguigu.hospital.util;


import java.io.Serializable;
import java.util.Collection;
import java.util.List;

public class PageInfo<T> implements Serializable {
	private static final long serialVersionUID = 1L;
	private int pageNum;
	private int pageSize;
	private int size;
	private int startRow;
	private int endRow;
	private long total;
	private int pages;
	private List<T> list;
	private int prePage;
	private int nextPage;
	private boolean isFirstPage;
	private boolean isLastPage;
	private boolean hasPreviousPage;
	private boolean hasNextPage;
	private int navigatePages;
	private int[] navigatepageNums;
	private int navigateFirstPage;
	private int navigateLastPage;

	public PageInfo() {
		this.isFirstPage = false;
		this.isLastPage = false;
		this.hasPreviousPage = false;
		this.hasNextPage = false;
	}

	public PageInfo(List<T> list) {
		this(list, 8);
	}

	public PageInfo(List<T> list, int navigatePages) {
		this.isFirstPage = false;
		this.isLastPage = false;
		this.hasPreviousPage = false;
		this.hasNextPage = false;
		if (list instanceof Collection) {
			this.pageNum = 1;
			this.pageSize = list.size();
			this.pages = 1;
			this.list = list;
			this.size = list.size();
			this.total = (long) list.size();
			this.startRow = 0;
			this.endRow = list.size() > 0 ? list.size() - 1 : 0;
		}

		if (list instanceof Collection) {
			this.navigatePages = navigatePages;
			this.calcNavigatepageNums();
			this.calcPage();
			this.judgePageBoudary();
		}

	}

	private void calcNavigatepageNums() {
		int i;
		if (this.pages <= this.navigatePages) {
			this.navigatepageNums = new int[this.pages];

			for (i = 0; i < this.pages; ++i) {
				this.navigatepageNums[i] = i + 1;
			}
		} else {
			this.navigatepageNums = new int[this.navigatePages];
			i = this.pageNum - this.navigatePages / 2;
			int endNum = this.pageNum + this.navigatePages / 2;
			//int i;
			if (i < 1) {
				i = 1;

				for (i = 0; i < this.navigatePages; ++i) {
					this.navigatepageNums[i] = i++;
				}
			} else if (endNum > this.pages) {
				endNum = this.pages;

				for (i = this.navigatePages - 1; i >= 0; --i) {
					this.navigatepageNums[i] = endNum--;
				}
			} else {
				for (i = 0; i < this.navigatePages; ++i) {
					this.navigatepageNums[i] = i++;
				}
			}
		}

	}

	private void calcPage() {
		if (this.navigatepageNums != null && this.navigatepageNums.length > 0) {
			this.navigateFirstPage = this.navigatepageNums[0];
			this.navigateLastPage = this.navigatepageNums[this.navigatepageNums.length - 1];
			if (this.pageNum > 1) {
				this.prePage = this.pageNum - 1;
			}

			if (this.pageNum < this.pages) {
				this.nextPage = this.pageNum + 1;
			}
		}

	}

	private void judgePageBoudary() {
		this.isFirstPage = this.pageNum == 1;
		this.isLastPage = this.pageNum == this.pages;
		this.hasPreviousPage = this.pageNum > 1;
		this.hasNextPage = this.pageNum < this.pages;
	}

	public int getPageNum() {
		return this.pageNum;
	}

	public void setPageNum(int pageNum) {
		this.pageNum = pageNum;
	}

	public int getPageSize() {
		return this.pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getSize() {
		return this.size;
	}

	public void setSize(int size) {
		this.size = size;
	}

	public int getStartRow() {
		return this.startRow;
	}

	public void setStartRow(int startRow) {
		this.startRow = startRow;
	}

	public int getEndRow() {
		return this.endRow;
	}

	public void setEndRow(int endRow) {
		this.endRow = endRow;
	}

	public long getTotal() {
		return this.total;
	}

	public void setTotal(long total) {
		this.total = total;
	}

	public int getPages() {
		return this.pages;
	}

	public void setPages(int pages) {
		this.pages = pages;
	}

	public List<T> getList() {
		return this.list;
	}

	public void setList(List<T> list) {
		this.list = list;
	}

	/**
	 * @deprecated
	 */
	@Deprecated
	public int getFirstPage() {
		return this.navigateFirstPage;
	}

	/**
	 * @deprecated
	 */
	@Deprecated
	public void setFirstPage(int firstPage) {
		this.navigateFirstPage = firstPage;
	}

	public int getPrePage() {
		return this.prePage;
	}

	public void setPrePage(int prePage) {
		this.prePage = prePage;
	}

	public int getNextPage() {
		return this.nextPage;
	}

	public void setNextPage(int nextPage) {
		this.nextPage = nextPage;
	}

	/**
	 * @deprecated
	 */
	@Deprecated
	public int getLastPage() {
		return this.navigateLastPage;
	}

	/**
	 * @deprecated
	 */
	@Deprecated
	public void setLastPage(int lastPage) {
		this.navigateLastPage = lastPage;
	}

	public boolean isIsFirstPage() {
		return this.isFirstPage;
	}

	public void setIsFirstPage(boolean isFirstPage) {
		this.isFirstPage = isFirstPage;
	}

	public boolean isIsLastPage() {
		return this.isLastPage;
	}

	public void setIsLastPage(boolean isLastPage) {
		this.isLastPage = isLastPage;
	}

	public boolean isHasPreviousPage() {
		return this.hasPreviousPage;
	}

	public void setHasPreviousPage(boolean hasPreviousPage) {
		this.hasPreviousPage = hasPreviousPage;
	}

	public boolean isHasNextPage() {
		return this.hasNextPage;
	}

	public void setHasNextPage(boolean hasNextPage) {
		this.hasNextPage = hasNextPage;
	}

	public int getNavigatePages() {
		return this.navigatePages;
	}

	public void setNavigatePages(int navigatePages) {
		this.navigatePages = navigatePages;
	}

	public int[] getNavigatepageNums() {
		return this.navigatepageNums;
	}

	public void setNavigatepageNums(int[] navigatepageNums) {
		this.navigatepageNums = navigatepageNums;
	}

	public int getNavigateFirstPage() {
		return this.navigateFirstPage;
	}

	public int getNavigateLastPage() {
		return this.navigateLastPage;
	}

	public void setNavigateFirstPage(int navigateFirstPage) {
		this.navigateFirstPage = navigateFirstPage;
	}

	public void setNavigateLastPage(int navigateLastPage) {
		this.navigateLastPage = navigateLastPage;
	}

	public String toString() {
		StringBuffer sb = new StringBuffer("PageInfo{");
		sb.append("pageNum=").append(this.pageNum);
		sb.append(", pageSize=").append(this.pageSize);
		sb.append(", size=").append(this.size);
		sb.append(", startRow=").append(this.startRow);
		sb.append(", endRow=").append(this.endRow);
		sb.append(", total=").append(this.total);
		sb.append(", pages=").append(this.pages);
		sb.append(", list=").append(this.list);
		sb.append(", prePage=").append(this.prePage);
		sb.append(", nextPage=").append(this.nextPage);
		sb.append(", isFirstPage=").append(this.isFirstPage);
		sb.append(", isLastPage=").append(this.isLastPage);
		sb.append(", hasPreviousPage=").append(this.hasPreviousPage);
		sb.append(", hasNextPage=").append(this.hasNextPage);
		sb.append(", navigatePages=").append(this.navigatePages);
		sb.append(", navigateFirstPage").append(this.navigateFirstPage);
		sb.append(", navigateLastPage").append(this.navigateLastPage);
		sb.append(", navigatepageNums=");
		if (this.navigatepageNums == null) {
			sb.append("null");
		} else {
			sb.append('[');

			for (int i = 0; i < this.navigatepageNums.length; ++i) {
				sb.append(i == 0 ? "" : ", ").append(this.navigatepageNums[i]);
			}

			sb.append(']');
		}

		sb.append('}');
		return sb.toString();
	}
}
